420952478 has 8 divisors (see below), whose sum is σ = 648494472. Its totient is φ = 204787656.

The previous prime is 420952457. The next prime is 420952481. The reversal of 420952478 is 874259024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2844200 + ... + 2844347.

It is an arithmetic number, because the mean of its divisors is an integer number (81061809).

Almost surely, 2^420952478 is an apocalyptic number.

420952478 is a deficient number, since it is larger than the sum of its proper divisors (227541994).

420952478 is a wasteful number, since it uses less digits than its factorization.

420952478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688586.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 420952478 is about 20517.1264557199. The cubic root of 420952478 is about 749.4529213332.

The spelling of 420952478 in words is "four hundred twenty million, nine hundred fifty-two thousand, four hundred seventy-eight".